百度贴吧

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• #coding:utf-8
  
  import urllib
  import urllib2
  
  def loadPage(url,filename):
      '''
          作用：根据url发送请求，获取服务器响应文件
          url：需要爬去的url地址
          filename : 处理的文件名
      '''
      print "正在下载" + filename
      headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36"}
      request = urllib2.Request(url, headers = headers)
      return urllib2.urlopen(request).read()
  
  
  def writePage(html,filename):
      '''
          作用：将html内容写入到本地
          html：服务器相应文件内容
  
  
      '''
  
      print "正在保存" + filename
      with open(filename, "w") as f:
          f.write(html)
      print "_" * 30
  
  def tiebaSpider(url, beginPage, endPage):
      '''
          作用：贴吧爬虫调度器，负责组合处理每个页面的url
          url: url的前部分
          beginPage: 起始页
          endPage: 结束页
      '''
  
      for page in range(beginPage, endPage + 1):
          pn = (page -1)*50
          filename = "第" + str(page) + "页.html"
          fullurl = url + "&pn=" + str(pn)
          html = loadPage(fullurl, filename)
          #print html
          writePage(html, filename)
          print "谢谢使用"
  
  if __name__ == "__main__":
      kw = raw_input("请输入需要爬取的贴吧名：")
      beginPage = int(raw_input("请输入起始页："))
      endPage = int(raw_input("请输入结束页："))
  
      url = "http://tieba.baidu.com/f?"
      key = {"kw" : kw}
      key = urllib.urlencode(key)
      fullurl = url + key
      tiebaSpider(fullurl, beginPage, endPage)